ITACA — ORC Rating | RegattaPages

GPH

754.3

OSN

733

LOA

7.88 m

Displacement

1800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5593

Medium

0.7372

High

0.8243

Triple Offshore

Low

0.7102

Medium

0.8909

High

0.9793

Boat Specifications

Dimensions

Length overall: 7.88 m
Beam: 2.7 m
Draft: 1.48 m
Displacement: 1800 kg
Crew weight: 350 kg
Wetted surface: 13.06 m²

Sails

Mainsail: 15.66 m²
Genoa: 24.63 m²
Spinnaker: 43.67 m²
Asymmetric spinnaker: 48.83 m²

Design

Type: Ecume de Mer
Builder: Mallard
Designer: Finot
Year built: 1972
Stability index: 107.8

Velocity Prediction

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.

6,42.4,4.021909,52,4.47,60,4.68,75,4.79,90,4.71,110,4.77,120,4.62,135,4.23,146.6,3.773143,150,3.63
8,40.8,4.663174,52,5.18,60,5.34,75,5.45,90,5.48,110,5.57,120,5.48,135,5.13,150,4.54,151.1,4.489045
10,39.4,5.059959,52,5.55,60,5.68,75,5.78,90,5.88,110,6,120,5.95,135,5.73,150,5.28,155.6,5.05115
12,38.5,5.238892,52,5.74,60,5.87,75,6,90,6.12,110,6.31,120,6.3,135,6.09,150,5.77,168.2,5.312262
14,38.4,5.308198,52,5.81,60,5.96,75,6.17,90,6.25,110,6.61,120,6.63,135,6.43,150,6.1,177.2,5.676777
16,38.4,5.320958,52,5.85,60,6.02,75,6.28,90,6.44,110,6.89,120,6.99,135,6.78,150,6.41,179,6.000914
20,39.6,5.360064,52,5.87,60,6.06,75,6.4,90,6.74,110,7.29,120,7.69,135,7.61,150,7.09,178.4,6.59257

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.47	4.68	4.79	4.71	4.77	4.62	4.23	3.63
8	5.18	5.34	5.45	5.48	5.57	5.48	5.13	4.54
10	5.55	5.68	5.78	5.88	6	5.95	5.73	5.28
12	5.74	5.87	6	6.12	6.31	6.3	6.09	5.77
14	5.81	5.96	6.17	6.25	6.61	6.63	6.43	6.1
16	5.85	6.02	6.28	6.44	6.89	6.99	6.78	6.41
20	5.87	6.06	6.4	6.74	7.29	7.69	7.61	7.09

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	2.97	146.6°	3.15
8	40.8°	3.53	151.1°	3.93
10	39.4°	3.91	155.6°	4.6
12	38.5°	4.1	168.2°	5.2
14	38.4°	4.16	177.2°	5.67
16	38.4°	4.17	179°	6
20	39.6°	4.13	178.4°	6.59

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